| 摘要 |
PURPOSE:To improve the efficiency in mass production of the application of magnetic paint and cutting work, by linking a plurality of magnetic drums in the axial direction, and providing linking parts, by which the surfaces of the cylindrical parts of the neighboring magnetic drums in the uniform surface state are formed. CONSTITUTION:A plurality of magnetic drums 10 are linked through linking parts 12. Then a coupling protruded part 14 of one of the neighboring magnetic drums 10 is compressed into a coupling recess part 15 of the other magnetic drum 10. Thus the cylindrical parts 11 are linked so as to form the uniform surface and a long cylinder is formed as a whole. Magnetic paint is applied on the entire surface of each cylindrical part 11 and dried. The paint is cut away so as to obtain a specified thickness and width. |
